20 Most Recent HP LC3760N 37 in. LCD HDTV Questions & Answers

That sounds like the safety shut down for the power supply board kicking in.

You could shotgun repair it by replacing the board but without a manual it's a bit like shooting in the dark and I can't find the repair manual out there, but here's and idea of the component modular board costs.


HP LC3760N 37... | Answered on Apr 21, 2015

Call the company for assistance

HP LC3760N 37... | Answered on Mar 17, 2015

what about the other inputs ? are they working fine ?


HP LC3760N 37... | Answered on Jan 08, 2014

Change the power supply board - LC504-4201CC 161WJQZ is the power supply board for the LC3760N TV

HP LC3760N 37... | Answered on May 10, 2011

I had a similar problem with my 42 in Philips LCD HDTV.

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you.

1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. The entire board costs around $250 right now because they are in high demand right now. They can be found online. I would definitely shop around though.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem. I'm working on uploading pictures to help guide people though the process as well. Let me know if I can do anything to help.

Hope this helps and if it does please rate it accordingly. Good luck.

HP LC3760N 37... | Answered on Dec 20, 2010

Hello, an 8 amp fuse that is blown is more than likely an indicator of more serious problems, but if you wnat to try another fuse make sure you get the same amperage as the one that came with the TV(8A-250V), try radioshack they still carry some replacement electronic parts.

HP LC3760N 37... | Answered on Nov 18, 2010

Try reset the TV first by unplug from the wall for 5 minutes. Then plug in power and turn on again to see if the firmware loads for DTV tuner. If not, you need service..Most large TV LCD screen maybe bad(short circuit), so that TV will not work.

HP LC3760N 37... | Answered on Aug 26, 2010

The power supply may be in the safety shut down mode due to bad power supply or shorts circuits in the backlight inverter board, you need to do some voltage checkings to narrow down the problem.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:



Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

Please post back what you find.

HP LC3760N 37... | Answered on Jul 30, 2010

you have a bad power supply, and the tv goes to protect mode, undo the back and look for any bulged or open cap, and replace it.
Fosg2000, please rate me

HP LC3760N 37... | Answered on Mar 18, 2010

Replace the whole board,LCD usally the IC is dead,not like DLP the capacitors,burn most of the time.

HP LC3760N 37... | Answered on Sep 22, 2009

more than tv replacement

HP LC3760N 37... | Answered on Jun 26, 2009

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